Python dir() Function
Python Built-in FunctionsDescription
dir()When the function is called without parameters, it returns a list of variables, methods, and defined types in the current scope; when called with a parameter, it returns a list of the parameter's attributes and methods. If the parameter contains the method __dir__(), that method will be called. If the parameter does not contain __dir__(), the method will collect parameter information to the greatest extent.
Syntax
dir syntax:
dir([object])
Parameter description:
- object -- object, variable, type.
Return Value
Returns a list of module attributes.
Example
The following example demonstrates how to use dir:
>>>dir() # Get the attribute list of the current module
['__builtins__', '__doc__', '__name__', '__package__', 'arr', 'myslice']
>>> dir([ ]) # View the methods of the list
['__add__', '__class__', '__contains__', '__delattr__', '__delitem__', '__delslice__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__getitem__', '__getslice__', '__gt__', '__hash__', '__iadd__', '__imul__', '__init__', '__iter__', '__le__', '__len__', '__lt__', '__mul__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__reversed__', '__rmul__', '__setattr__', '__setitem__', '__setslice__', '__sizeof__', '__str__', '__subclasshook__', 'append', 'count', 'extend', 'index', 'insert', 'pop', 'remove', 'reverse', 'sort']
>>>